1N4749AE3/TR13

Overview

The Microchip Technology 1N4749AE3/TR13 is a Zener Voltage Regulator Diode designed for through-hole mounting. It features a nominal Zener voltage of 24 V with a tolerance of 5%. The device has a power dissipation rating of 1 W and operates within a temperature range from -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 38 Ohms at the test current of 10.5 mA, and a forward voltage of 1.2 V. The component utilizes a DO-41-2 axial package.

Feature Summary

• Provides stable voltage regulation using silicon Zener breakdown technology
• Capable of handling high thermal loads with a 1 W power dissipation rating
• Engineered for extended operational reliability across extreme temperature environments

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in power supply systems
• Clamping applications for transient voltage suppression

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required packaging and compliance standards. Confirm availability status as distribution channels may vary. Cross-reference manufacturer part numbers directly to avoid substitution errors during procurement processes.

Selection Notes

Select this component when a 24 V regulation point is required with high power handling capabilities. Ensure the circuit design accommodates the specified thermal dissipation requirements. Verify that the axial leaded package fits the intended PCB layout constraints and mounting style requirements.

Part Context

This component belongs to the standard 1N47xx series of Zener diodes manufactured by Microchip Technology. It represents a legacy through-hole solution widely used in industrial and commercial electronics. The 'e3' designation indicates lead-free composition, adhering to environmental compliance standards while maintaining robust electrical performance characteristics.

Replacement Considerations

Consult official Microchip documentation for confirmed substitute part numbers. Generic equivalents may not match the specific impedance or leakage specifications.